If you created your TaxJar account by adding the TaxJar app in Square, you will need to cancel your TaxJar account by going back to your Applications Dashboard within your Square account (where you signed up for TaxJar).
Once you're signed in to Square:
1) Click "Apps" on the black nav bar on the left side of the screen
2) Click "Manage Apps" next to TaxJar
3) Click the 'x' next to Square Account Access to revoke TaxJar's access to your Square transactions and close your account.
After you complete these steps, your account will be canceled.
NOTE: If you didn't sign up through Square, the steps to cancel will be different. We show you how to do this here.